EP2145141A2 - Procédé de fabrication d'un appareil frigorifique - Google Patents

Procédé de fabrication d'un appareil frigorifique

Info

Publication number
EP2145141A2
EP2145141A2 EP08717831A EP08717831A EP2145141A2 EP 2145141 A2 EP2145141 A2 EP 2145141A2 EP 08717831 A EP08717831 A EP 08717831A EP 08717831 A EP08717831 A EP 08717831A EP 2145141 A2 EP2145141 A2 EP 2145141A2
Authority
EP
European Patent Office
Prior art keywords
sealing material
rear wall
nozzle
joints
insulating foam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08717831A
Other languages
German (de)
English (en)
Inventor
Carsten Jung
Martin Ziegler
Marc-Oliver GÜTTINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2145141A2 publication Critical patent/EP2145141A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet

Definitions

  • the invention relates to a method for producing a refrigeration device according to the preamble of claim 1.
  • Refrigerators usually have a cooled interior, which is limited by well-cleaned plastic walls. In this interior are drawers or shelves for storage of refrigerated or frozen food.
  • the refrigerator is surrounded by an outer shell that protects the device against external influences.
  • a space is provided between the plastic walls of the interior and the outer shell, which is injected with an insulating foam.
  • an injection opening for the insulating foam is usually provided in the engine compartment of the refrigerator near the rear wall. From this injection opening, the insulating foam is distributed in the intermediate space so that it fills the entire space evenly and so evenly stripped the interior at all points.
  • the inner shell When preassembling the refrigerator, the inner shell is mounted in the housing. Likewise, housings for electronic components and passages for cables and lines are already provided in the resulting intermediate space. Under certain circumstances, joints are deliberately provided, which are required, for example, if components made of different materials have different coefficients of expansion. Likewise arise due to assembly and manufacturing tolerances columns. These joints and columns must all be before the
  • Foaming with insulating foam be laboriously sealed because the insulating foam otherwise emerges from the joints and gaps and can pollute the outside of the housing. Likewise, the insulating foam can penetrate through such joints and gaps in housing for electronic components and make the local placement of the electronic components impossible. If the electronic components were already mounted before foaming the gap, they can be unusable by the insulating foam. The passage of the insulating foam through the joints and gaps has hitherto been prevented for example by foam labyrinths. At In other places, joints and gaps were painstakingly sealed with adhesive tape before the foaming process, which had to be removed again after the foaming process. All these measures, which are intended to prevent the passage of insulating foam, are expensive and expensive.
  • the invention has for its object a method for producing a refrigerator in such a way that no complex and expensive steps are necessary to seal the gap so that no insulating foam can escape from the gap.
  • the object is achieved according to the invention by a method for producing a refrigerator with the features of claim 1.
  • a sealing material By injecting a sealing material into the gap before injecting the insulating all other sealing measures can be saved.
  • the sealing material must be such that it seals all joints and gaps that may occur in the refrigeration unit to be manufactured. The choice of the appropriate sealing material thus depends on the width of the joints and / or gaps occurring.
  • the sealing material should be injected quickly and as automatically as possible into the gap so that all joints and / or gaps can be reached and sealed by the sealant.
  • a direct spraying of each joint and / or column is practically impossible.
  • As much more advantageous has been found to nebulize the sealing material during injection. The mist thus generated settles in a relatively large area of the gap and closes there the joints and / or columns.
  • the sealing material is injected in an advantageous manner via a nozzle which is inserted through the outer shell into the intermediate space.
  • a further assembly step after the injection of the sealing material can be omitted.
  • the nozzle according to the invention is inserted so far into the space that it is positioned near the joints and / or gaps to be closed. In this way it is ensured that the generated mist also seals all joints and / or gaps. At the same time sealing material is saved because not the entire gap must be injected.
  • openings may be provided, for example, in the rear wall. These openings may be adapted to the orifice of the nozzle, but they may also consist of a cross-shaped section, wherein the resulting free corners are pressed by the nozzle when penetrating through the rear wall inwardly. These openings could be closed after injection of the sealant in a simple manner.
  • the back walls of refrigerators are often made of a cardboard-containing material. It is therefore particularly advantageous if the rear wall is perforated by means of the nozzle. In this way, no preparatory work is necessary and it can be the same back walls used as before.
  • the nozzle is provided for this purpose with a tip which is pressed through the rear wall. Furthermore, the nozzle tip could be provided with a cross-shaped cutting edge, so that in the rear wall, a cross-shaped section is formed through the middle of the nozzle tip is pushed. This would have the advantage that after pulling out the nozzle in the back wall only the cross-shaped incision remains and the nozzle would leave no hole, which in turn would have to be closed.
  • the nozzle By atomizing the sealing material, even a small amount of sealing material settles on the nozzle itself.
  • the nozzle is advantageously performed so closely in the perforation of the rear wall, that the deposited sealing material when pulling out the Nozzle is stripped off.
  • the stripped sealing material to close the perforation it must already have a certain toughness. The nozzle is therefore left in its injection position until the sealing material has the necessary strength.
  • a lacquer can be used as the sealant. This may be, for example, an air-drying paint. Likewise, however, it would be possible to use a multicomponent paint which cures without the action of air after a predetermined time.
  • a foam is advantageously used as a sealing material.
  • Such a foam expands and is therefore better suited to close wider joints and / or gaps.
  • this sealing foam does not pass through the joints and / or gaps, since the internal pressure in the intermediate space is not increased when the sealing foam is injected.
  • Fig. 2 is a refrigeration device during injection of the sealing material
  • the reference numeral 2 stands for the injection of the sealing material for closing joints and / or gaps.
  • the reference numeral 3 denotes the injection of the insulating foam.
  • Fig. 2 In the refrigerator shown in Fig. 2 is a so-called fridge / freezer combination.
  • the inner shell of the cooling chamber 7 and the inner shell of the freezer compartment 8 is provided.
  • Both Nose shells 7, 8 are mounted in a housing which has a cover 4, two side walls 5 and a rear wall 6.
  • two vacuum cups 10 are shown in Fig. 2, which are placed on the rear wall 6.
  • only one injector 9 is shown for the sealant.
  • each vacuum cleaner 10 has its own injection nozzle 9.
  • the vacuum cups 10 are designed so that they simultaneously represent a guide for the injection nozzle 9.
  • the injection nozzles 9 are formed as pointed lances.
  • the cover 4 In the pre-assembly 1, the cover 4, the side walls 5 and a bottom part, not shown here, are connected to the outer housing of the refrigeration device.
  • the back of the housing is closed with the rear wall 6.
  • the inner shell for the cooling chamber 7 and the inner shell for the freezer compartment 8 is mounted. The assembly takes place in such a way that between the inner shells and the outer housing remains a gap which can be filled with insulating foam.
  • the refrigerator is brought on the way to inject the insulating foam 2 to a foaming system.
  • the vacuum cups 10 are automatically placed with the injectors guided therein at the predetermined locations of the rear wall 6.
  • the injection nozzles 9 are pushed through the rear wall 6 and each moved to a position from which the gaps and joints are easily accessible. Then the sealant is injected. The mist generated by the injectors 9 settles in the gap and closes the joints and gaps. Once the curing process of the sealant has begun, the nozzles 9 in the guides of the vacuum cups 10 are withdrawn.
  • the vacuum cups 10 keep the rear wall 6 continues in position.
  • sealing material which has been deposited on the injection nozzles 9 is stripped off on the inside of the rear wall 6.
  • this opening is closed with the stripped sealing material. An additional operation for closing the openings is therefore not necessary.
  • the vacuum cups 10 are lifted together with the injectors 9 guided therein from the rear wall 6.
  • the refrigeration device can now continue to be transported for injecting the insulating foam 3 in the foaming system.
  • the sealing material can fully harden and seal the joints and gaps.
  • the sealed joints and gaps withstand the pressure of the injected insulating foam and thus ensure that no insulating foam passes through and causes no damage that is difficult to repair.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un appareil frigorifique composé d'un espace intérieur réfrigéré délimité par une coque intérieure (7, 8), d'une coque extérieure (4, 5, 6) et d'un espace intermédiaire situé entre la coque intérieure (7, 8) et la coque extérieure (4, 5, 6), dans lequel une mousse isolante durcissante est injectée. Avant injection de la mousse isolante (3), un matériau d'étanchéité est injecté dans l'espace intermédiaire (2), ledit matériau d'étanchéité refermant des joints et/ou des fentes et empêchant un passage de la mousse isolante au travers de ces joints et/ou fentes.
EP08717831A 2007-04-10 2008-03-14 Procédé de fabrication d'un appareil frigorifique Withdrawn EP2145141A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007016846A DE102007016846A1 (de) 2007-04-10 2007-04-10 Verfahren zum Herstellen eines Kältegeräts
PCT/EP2008/053090 WO2008122483A2 (fr) 2007-04-10 2008-03-14 Procédé de fabrication d'un appareil frigorifique

Publications (1)

Publication Number Publication Date
EP2145141A2 true EP2145141A2 (fr) 2010-01-20

Family

ID=39736875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08717831A Withdrawn EP2145141A2 (fr) 2007-04-10 2008-03-14 Procédé de fabrication d'un appareil frigorifique

Country Status (6)

Country Link
US (1) US20100136231A1 (fr)
EP (1) EP2145141A2 (fr)
CN (1) CN101641560B (fr)
DE (1) DE102007016846A1 (fr)
RU (1) RU2493507C2 (fr)
WO (1) WO2008122483A2 (fr)

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US8986483B2 (en) 2012-04-02 2015-03-24 Whirlpool Corporation Method of making a folded vacuum insulated structure
US9221210B2 (en) 2012-04-11 2015-12-29 Whirlpool Corporation Method to create vacuum insulated cabinets for refrigerators
US9689604B2 (en) 2014-02-24 2017-06-27 Whirlpool Corporation Multi-section core vacuum insulation panels with hybrid barrier film envelope
US10052819B2 (en) 2014-02-24 2018-08-21 Whirlpool Corporation Vacuum packaged 3D vacuum insulated door structure and method therefor using a tooling fixture
US9476633B2 (en) 2015-03-02 2016-10-25 Whirlpool Corporation 3D vacuum panel and a folding approach to create the 3D vacuum panel from a 2D vacuum panel of non-uniform thickness
US10161669B2 (en) 2015-03-05 2018-12-25 Whirlpool Corporation Attachment arrangement for vacuum insulated door
US9897370B2 (en) 2015-03-11 2018-02-20 Whirlpool Corporation Self-contained pantry box system for insertion into an appliance
US9441779B1 (en) 2015-07-01 2016-09-13 Whirlpool Corporation Split hybrid insulation structure for an appliance
US10041724B2 (en) 2015-12-08 2018-08-07 Whirlpool Corporation Methods for dispensing and compacting insulation materials into a vacuum sealed structure
US10222116B2 (en) 2015-12-08 2019-03-05 Whirlpool Corporation Method and apparatus for forming a vacuum insulated structure for an appliance having a pressing mechanism incorporated within an insulation delivery system
US10422573B2 (en) 2015-12-08 2019-09-24 Whirlpool Corporation Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein
US10429125B2 (en) 2015-12-08 2019-10-01 Whirlpool Corporation Insulation structure for an appliance having a uniformly mixed multi-component insulation material, and a method for even distribution of material combinations therein
US11052579B2 (en) 2015-12-08 2021-07-06 Whirlpool Corporation Method for preparing a densified insulation material for use in appliance insulated structure
WO2017100037A1 (fr) 2015-12-09 2017-06-15 Whirlpool Corporation Structures d'isolation sous vide avec isolants multiples
US10422569B2 (en) 2015-12-21 2019-09-24 Whirlpool Corporation Vacuum insulated door construction
US9840042B2 (en) 2015-12-22 2017-12-12 Whirlpool Corporation Adhesively secured vacuum insulated panels for refrigerators
US10610985B2 (en) 2015-12-28 2020-04-07 Whirlpool Corporation Multilayer barrier materials with PVD or plasma coating for vacuum insulated structure
US10018406B2 (en) 2015-12-28 2018-07-10 Whirlpool Corporation Multi-layer gas barrier materials for vacuum insulated structure
US10807298B2 (en) 2015-12-29 2020-10-20 Whirlpool Corporation Molded gas barrier parts for vacuum insulated structure
US10030905B2 (en) 2015-12-29 2018-07-24 Whirlpool Corporation Method of fabricating a vacuum insulated appliance structure
US11247369B2 (en) 2015-12-30 2022-02-15 Whirlpool Corporation Method of fabricating 3D vacuum insulated refrigerator structure having core material
US10712080B2 (en) 2016-04-15 2020-07-14 Whirlpool Corporation Vacuum insulated refrigerator cabinet
EP3443284B1 (fr) 2016-04-15 2020-11-18 Whirlpool Corporation Structure de réfrigérateur à isolation sous vide, dotée de caractéristiques tridimensionnelles
US11320193B2 (en) 2016-07-26 2022-05-03 Whirlpool Corporation Vacuum insulated structure trim breaker
WO2018034665A1 (fr) 2016-08-18 2018-02-22 Whirlpool Corporation Compartiment de machine pour une structure isolée sous vide
US10598424B2 (en) 2016-12-02 2020-03-24 Whirlpool Corporation Hinge support assembly
US10352613B2 (en) 2016-12-05 2019-07-16 Whirlpool Corporation Pigmented monolayer liner for appliances and methods of making the same
WO2018136054A1 (fr) 2017-01-18 2018-07-26 Whirlpool Corporation Utilisation de conduits rigides ou perméables pour obtenir un temps d'évacuation sous vide plus rapide dans des structures isolées sous vide
WO2018136053A1 (fr) * 2017-01-18 2018-07-26 Whirlpool Corporation Zone d'orifice à vide accrue pour obtenir un temps d'évacuation sous vide plus rapide dans des structures isolées sous vide
EP3571453B1 (fr) 2017-01-18 2023-05-24 Whirlpool Corporation Utilisation sur des tubes d'en bord pour obtenir un temps d'évacuation de vide plus rapide dans des structures isolées sous vide
US10907888B2 (en) 2018-06-25 2021-02-02 Whirlpool Corporation Hybrid pigmented hot stitched color liner system
US10907891B2 (en) 2019-02-18 2021-02-02 Whirlpool Corporation Trim breaker for a structural cabinet that incorporates a structural glass contact surface
US12070924B2 (en) 2020-07-27 2024-08-27 Whirlpool Corporation Appliance liner having natural fibers

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Also Published As

Publication number Publication date
WO2008122483A2 (fr) 2008-10-16
US20100136231A1 (en) 2010-06-03
WO2008122483A3 (fr) 2008-12-11
RU2493507C2 (ru) 2013-09-20
RU2009137480A (ru) 2011-05-20
CN101641560B (zh) 2012-02-15
CN101641560A (zh) 2010-02-03
DE102007016846A1 (de) 2008-10-16

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